United States. Department of Transportation. Federal Highway Administration. Office of Federal Lands Highway
2023-04-20
|
PDF
The Copper River Access Study is a Federal Lands Access Program (FLAP) funded project to develop a public access easement between the Richardson Highway and the Copper River in Alaska on Ahtna, Inc. lands north of the Gulkana Airport and south of the Gulkana River. Additionally, the study will develop conceptual designs, cost estimates, and other c
...
United States. Department of Transportation. Federal Highway Administration. Office of Federal Lands Highway (2023). Copper River Access Study: Existing Conditions. United States. Department of Transportation. Federal Highway Administration. Office of Federal Lands Highway. https://rosap.ntl.bts.gov/view/dot/82499
United States. Department of Transportation. Federal Highway Administration. Office of Federal Lands Highway. Copper River Access Study: Existing Conditions. United States. Department of Transportation. Federal Highway Administration. Office of Federal Lands Highway, 2023. https://rosap.ntl.bts.gov/view/dot/82499.
United States. Department of Transportation. Federal Highway Administration. Office of Federal Lands Highway Copper River Access Study: Existing Conditions. United States. Department of Transportation. Federal Highway Administration. Office of Federal Lands Highway, 2023, ROSA P. https://rosap.ntl.bts.gov/view/dot/82499.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2023-04-14
|
PDF
The Weekly Gasoline Product Supplied Report offers insight on weekly fluctuation of the gasoline product supply, which is an important part of any analysis of construction trends, materials and operating costs associated with highway repair and construction, and changes in traffic volume. These data come directly from the Energy Information Adminis
...
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information (2023). Special Issue - Weekly Motor Fuel Report: Gasoline Product Supplied for Fiscal Year Week No. 28, Data Complete Through 4/14/2023. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information. https://rosap.ntl.bts.gov/view/dot/67283
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information. Special Issue - Weekly Motor Fuel Report: Gasoline Product Supplied for Fiscal Year Week No. 28, Data Complete Through 4/14/2023. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information, 2023. https://rosap.ntl.bts.gov/view/dot/67283.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information Special Issue - Weekly Motor Fuel Report: Gasoline Product Supplied for Fiscal Year Week No. 28, Data Complete Through 4/14/2023. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information, 2023, ROSA P. https://rosap.ntl.bts.gov/view/dot/67283.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2023-04-12
|
Special Issue - Weekly Motor Fuel Report
|
PDF
The Weekly Gasoline Product Supplied Report offers insight on weekly fluctuation of the gasoline product supply, which is an important part of any analysis of construction trends, materials and operating costs associated with highway repair and construction, and changes in traffic volume. These data come directly from the Energy Information Adminis
...
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information (2023). Special Issue - Weekly Motor Fuel Report: Gasoline Product Supplied for Fiscal Year Week No. 27, Data Complete Through 4/7/2023. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information. https://rosap.ntl.bts.gov/view/dot/73698
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information. Special Issue - Weekly Motor Fuel Report: Gasoline Product Supplied for Fiscal Year Week No. 27, Data Complete Through 4/7/2023. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information, 2023. https://rosap.ntl.bts.gov/view/dot/73698.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information Special Issue - Weekly Motor Fuel Report: Gasoline Product Supplied for Fiscal Year Week No. 27, Data Complete Through 4/7/2023. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information, 2023, ROSA P. https://rosap.ntl.bts.gov/view/dot/73698.
This Comprehensive Acquisition Plan (CAP) provides an overview of the proposed acquisition approach for the University of Washington (UW) ITS4US project, the Transportation Data Equity Initiative (TDEI). The TDEI project is a software-focused project which will primarily deployed on the cloud. The TDEI project will acquire mobile phones that will b
...
Tufte, K., Caspi, A., Hallenbeck, M., & Bolten, N. (2023). Phase 2 Comprehensive Acquisition Plan (CAP)- University of Washington ITS4US Deployment Project (Report No. FHWA-JPO-23-117). United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office. https://rosap.ntl.bts.gov/view/dot/68619
Tufte, Kristin, Anat Caspi, Mark Hallenbeck, and Nick Bolten. Phase 2 Comprehensive Acquisition Plan (CAP)- University of Washington ITS4US Deployment Project. Report no. FHWA-JPO-23-117. United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office, 2023. https://rosap.ntl.bts.gov/view/dot/68619.
Tufte, Kristin, et al. Phase 2 Comprehensive Acquisition Plan (CAP)- University of Washington ITS4US Deployment Project. United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office, 2023, Report no. FHWA-JPO-23-117, ROSA P. https://rosap.ntl.bts.gov/view/dot/68619.
United States. Department of Transportation. Federal Highway Administration
2023-04-07
|
PDF
The nighttime fatality rate on the Nation’s roadways is three times higher than the daytime rate, and 76 percent of pedestrian fatalities occur at night. Enhancing nighttime visibility where non-motorists mix with traffic during darkness will save lives. The focus is to deploy countermeasures that improve nighttime visibility to safely connect peop
...
United States. Department of Transportation. Federal Highway Administration (2023). Nighttime Visibility for Safety (Report No. FHWA-22-CAI-038). United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/90901
United States. Department of Transportation. Federal Highway Administration. Nighttime Visibility for Safety. Report no. FHWA-22-CAI-038. United States. Department of Transportation. Federal Highway Administration, 2023. https://rosap.ntl.bts.gov/view/dot/90901.
United States. Department of Transportation. Federal Highway Administration Nighttime Visibility for Safety. United States. Department of Transportation. Federal Highway Administration, 2023, Report no. FHWA-22-CAI-038, ROSA P. https://rosap.ntl.bts.gov/view/dot/90901.
Transportation agencies regularly consider trade-offs between investment options to address competing priorities with limited resources. Inadequate funding for all needed transportation improvements forces agencies to make difficult decisions across asset classes, such as mobility improvements versus preservation or on-going maintenance versus syst
...
Zimmerman, K. A., & Allen, B. W. (2023). Equity Considerations in Asset Management: Case Studies (Report No. FHWA-HIF-23-033). United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/71831
Zimmerman, Kathryn A and Brad W. Allen. Equity Considerations in Asset Management: Case Studies. Report no. FHWA-HIF-23-033. United States. Department of Transportation. Federal Highway Administration, 2023. https://rosap.ntl.bts.gov/view/dot/71831.
Zimmerman, Kathryn A, and Brad W. Allen Equity Considerations in Asset Management: Case Studies. United States. Department of Transportation. Federal Highway Administration, 2023, Report no. FHWA-HIF-23-033, ROSA P. https://rosap.ntl.bts.gov/view/dot/71831.
A programmatic approach to traffic control systems management and operations strategically links business processes, workforce, systems and technology, and management decisions to objectives that are consistent with the goals of the organization. The purpose of this handbook is to advance the use of objectives and performance-based approaches to tr
...
Balke, K., Sunkari, S., Florence, D., Tantillo, M. J., & Lawrence, C. (2023). Traffic Signal Program Handbook (Report No. FHWA-HOP-23-041). United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/75593
Balke, Kevin, Srinivasa Sunkari, David Florence, Michael J. Tantillo, and Cheryl Lawrence. Traffic Signal Program Handbook. Report no. FHWA-HOP-23-041. United States. Department of Transportation. Federal Highway Administration, 2023. https://rosap.ntl.bts.gov/view/dot/75593.
Balke, Kevin, et al. Traffic Signal Program Handbook. United States. Department of Transportation. Federal Highway Administration, 2023, Report no. FHWA-HOP-23-041, ROSA P. https://rosap.ntl.bts.gov/view/dot/75593.
John A. Volpe National Transportation Systems Center (U.S.)
2023-04-01
|
PDF
Geographic Information Systems (GIS) are an effective and increasingly essential tool at State Departments of Transportation (DOTs). With applications in all aspects of their work, GIS has helped State DOTs make better transportation decisions that are more informed and delivered in a cost-efficient, timely manner. While State DOTs have been using
...
John A. Volpe National Transportation Systems Center (U.S.) (2023). Using GIS for Crash Location and Analysis at State DOTs: Case Studies of Select Transportation Agencies. United States. Federal Highway Administration. Office of Planning. https://rosap.ntl.bts.gov/view/dot/85839
John A. Volpe National Transportation Systems Center (U.S.). Using GIS for Crash Location and Analysis at State DOTs: Case Studies of Select Transportation Agencies. United States. Federal Highway Administration. Office of Planning, 2023. https://rosap.ntl.bts.gov/view/dot/85839.
John A. Volpe National Transportation Systems Center (U.S.) Using GIS for Crash Location and Analysis at State DOTs: Case Studies of Select Transportation Agencies. United States. Federal Highway Administration. Office of Planning, 2023, ROSA P. https://rosap.ntl.bts.gov/view/dot/85839.
Six States from the Southeastern U.S. gathered for a peer exchange and discussion on implementation activities to support Balanced Mix Design (BMD). The peer exchange was sponsored by the Federal Highway Administration (FHWA). The six States met to assess the state-of-practice for the technology, tools, and techniques in designing, verifying, and a
...
Bittner, J., Hajj, E. Y., Aschenbrener, T., Gopisetti, P., & Rockwood, H. (2023). Southeast Peer Exchange on Balanced Mix Design (BMD): Outcomes Summary (Report No. FHWA-HIF-23-031). United States. Federal Highway Administration. Office of Preconstruction, Construction, and Pavements. https://rosap.ntl.bts.gov/view/dot/71826
Bittner, Jason, Elie Y Hajj, Tim Aschenbrener, Praveen Gopisetti, and Heidi Rockwood. Southeast Peer Exchange on Balanced Mix Design (BMD): Outcomes Summary. Report no. FHWA-HIF-23-031. United States. Federal Highway Administration. Office of Preconstruction, Construction, and Pavements, 2023. https://rosap.ntl.bts.gov/view/dot/71826.
Bittner, Jason, et al. Southeast Peer Exchange on Balanced Mix Design (BMD): Outcomes Summary. United States. Federal Highway Administration. Office of Preconstruction, Construction, and Pavements, 2023, Report no. FHWA-HIF-23-031, ROSA P. https://rosap.ntl.bts.gov/view/dot/71826.
This analysis tested the sensitivity of the latest version of the U.S. Environmental Protection Agency’s Motor Vehicle Emissions Simulator (MOVES), MOVES3, to various inputs. The analysis focuses on the following county level inputs: hotelling, off-network idle (ONI), average speed distribution, and age distribution as well as additional specific i
...
Chupp, W., Zubrow, A., Raymond, A., Liu, K., Yuen, A., Eilbert, A., Chang, S., & Mittelman, A. (2023). MOVES3 Sensitivity Analysis (Report No. FHWA-HEP-23-020;DOT-VNTSC-FHWA-23-05). United States. Federal Highway Administration. Office of Planning. https://rosap.ntl.bts.gov/view/dot/67328
Chupp, William, Alexis Zubrow, Abigail Raymond, Katie Liu, Anna Yuen, Andrew Eilbert, Shannon Chang, and Anjuliee Mittelman. MOVES3 Sensitivity Analysis. Report no. FHWA-HEP-23-020;DOT-VNTSC-FHWA-23-05. United States. Federal Highway Administration. Office of Planning, 2023. https://rosap.ntl.bts.gov/view/dot/67328.
Chupp, William, et al. MOVES3 Sensitivity Analysis. United States. Federal Highway Administration. Office of Planning, 2023, Report no. FHWA-HEP-23-020;DOT-VNTSC-FHWA-23-05, ROSA P. https://rosap.ntl.bts.gov/view/dot/67328.
United States. Department of Transportation. Federal Highway Administration
2023-04-01
|
PDF
For nearly a quarter of a century, National Work Zone Awareness Week (NWZAW) has been spotlighting critical safety and mobility issues in and around work zones. Every spring, the Federal Highway Administration and its stakeholders sponsor activities to bring nationwide attention to this important topic. Work zones are critical for upgrading and mai
...
United States. Department of Transportation. Federal Highway Administration (2023). National Work Zone Awareness Week: You Play a Role in Work Zone Safety - Work With Us [Fact Sheet] (Report No. FHWA-HOP-23-057). United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/67360
United States. Department of Transportation. Federal Highway Administration. National Work Zone Awareness Week: You Play a Role in Work Zone Safety - Work With Us [Fact Sheet]. Report no. FHWA-HOP-23-057. United States. Department of Transportation. Federal Highway Administration, 2023. https://rosap.ntl.bts.gov/view/dot/67360.
United States. Department of Transportation. Federal Highway Administration National Work Zone Awareness Week: You Play a Role in Work Zone Safety - Work With Us [Fact Sheet]. United States. Department of Transportation. Federal Highway Administration, 2023, Report no. FHWA-HOP-23-057, ROSA P. https://rosap.ntl.bts.gov/view/dot/67360.
This handbook is designed to help transportation practitioners incorporate natural hazard resilience into asset management. Upfront, it summarizes who to include in this planning process and how different groups (e.g., asset management, environment) can work together on this topic. The handbook then explains how to develop a baseline understanding
...
Dix, B., Wagner, H., Vargo, A., Proctor, G., Varma, S., & Filosa, G. (2023). Addressing Resilience to Climate Change & Extreme Weather in Transportation Asset Management (Report No. FHWA-HIF-23-010). United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/71828
Dix, Brenda, Hannah Wagner, Amanda Vargo, Gordon Proctor, Shobna Varma, and Gina Filosa. Addressing Resilience to Climate Change & Extreme Weather in Transportation Asset Management. Report no. FHWA-HIF-23-010. United States. Department of Transportation. Federal Highway Administration, 2023. https://rosap.ntl.bts.gov/view/dot/71828.
Dix, Brenda, et al. Addressing Resilience to Climate Change & Extreme Weather in Transportation Asset Management. United States. Department of Transportation. Federal Highway Administration, 2023, Report no. FHWA-HIF-23-010, ROSA P. https://rosap.ntl.bts.gov/view/dot/71828.
This study evaluated the safety effectiveness of mini-roundabout (MR) installations at two-way stop-controlled (TWSC) and all-way stop-controlled (AWSC) locations. Based on a longitudinal design including comparison sites, the database included three States: Washington, Michigan, and Maryland. Safety data were compiled for locations of known MR ins
...
Avelar, R. E., Park, E. S., & Kutela, B. (2023). Developing Crash Modification Factors for Mini-Roundabouts (Report No. FHWA-HRT-23-019). United States. Federal Highway Administration. Office of Safety Research and Development. https://rosap.ntl.bts.gov/view/dot/71846
Avelar, Raul Eduardo, Eun Sug Park, and Boniphace Kutela. Developing Crash Modification Factors for Mini-Roundabouts. Report no. FHWA-HRT-23-019. United States. Federal Highway Administration. Office of Safety Research and Development, 2023. https://rosap.ntl.bts.gov/view/dot/71846.
Avelar, Raul Eduardo, et al. Developing Crash Modification Factors for Mini-Roundabouts. United States. Federal Highway Administration. Office of Safety Research and Development, 2023, Report no. FHWA-HRT-23-019, ROSA P. https://rosap.ntl.bts.gov/view/dot/71846.
The percentage of pavements and bridges in Fair condition represents a significant portion of the nation’s inventory. This document summarizes points raised during virtual meetings conducted by the Federal Highway Administration's (FHWA’s) Transportation Asset Management Expert Task Group (TAM ETG) during calendar year 2021. These discussions addre
...
Zimmerman, K. A., Peshkin, D. G., & Allen, B. W. (2023). Considerations in Managing Pavements and Bridges in Fair Condition (Report No. FHWA-HIF-23-012). United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/67442
Zimmerman, Kathryn A, David G. Peshkin, and Brad W. Allen. Considerations in Managing Pavements and Bridges in Fair Condition. Report no. FHWA-HIF-23-012. United States. Department of Transportation. Federal Highway Administration, 2023. https://rosap.ntl.bts.gov/view/dot/67442.
Zimmerman, Kathryn A, et al. Considerations in Managing Pavements and Bridges in Fair Condition. United States. Department of Transportation. Federal Highway Administration, 2023, Report no. FHWA-HIF-23-012, ROSA P. https://rosap.ntl.bts.gov/view/dot/67442.
Documentation of potential safety performance impacts is required for Interchange Justification Reports (IJRs) to validate the need for new or modified interchanges.(2) Typically, IJRs are written early in the project planning and design process, with details generally consistent with conceptual design. As such, the design details required for usin
...
Himes, S., Gayah, V., Gooch, J., O'Connor, G., & Le, T. (2023). Safety Comparisons Between Interchange Types (Report No. FHWA-HRT-23-049). United States. Federal Highway Administration. Office of Safety and Operations Research and Development. https://rosap.ntl.bts.gov/view/dot/67100
Himes, Scott, Vikash Gayah, Jeff Gooch, Ginny O'Connor, and Thanh Le. Safety Comparisons Between Interchange Types. Report no. FHWA-HRT-23-049. United States. Federal Highway Administration. Office of Safety and Operations Research and Development, 2023. https://rosap.ntl.bts.gov/view/dot/67100.
Himes, Scott, et al. Safety Comparisons Between Interchange Types. United States. Federal Highway Administration. Office of Safety and Operations Research and Development, 2023, Report no. FHWA-HRT-23-049, ROSA P. https://rosap.ntl.bts.gov/view/dot/67100.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2023-04-01
|
PDF
Traffic Volume Trends is a monthly report based on hourly traffic count data reported by the States. These data are collected at approximately 5,000 continuous traffic counting locations nationwide and are used to estimate the percent change in traffic for the current month compared with the same month in the previous year. Estimates are re-adjuste
...
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information (2023). Traffic Volume Trends: April 2023. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information. https://rosap.ntl.bts.gov/view/dot/67702
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information. Traffic Volume Trends: April 2023. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information, 2023. https://rosap.ntl.bts.gov/view/dot/67702.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information Traffic Volume Trends: April 2023. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information, 2023, ROSA P. https://rosap.ntl.bts.gov/view/dot/67702.
United States. Department of Transportation. Federal Highway Administration
2023-04-01
|
PDF
This report explains how the traffic management systems (TMSs) are complex operational systems. TMSs enable human operators to facilitate improvements in the efficiency, safety, and predictability of travel on the surface transportation system. TMSs combine field equipment, information technology and communications, software, and other tools to col
...
United States. Department of Transportation. Federal Highway Administration (2023). Decision Support for Traffic Management Systems: Research and Development [fact sheet] (Report No. FHWA-HRT-23-044). United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/67356
United States. Department of Transportation. Federal Highway Administration. Decision Support for Traffic Management Systems: Research and Development [fact sheet]. Report no. FHWA-HRT-23-044. United States. Department of Transportation. Federal Highway Administration, 2023. https://rosap.ntl.bts.gov/view/dot/67356.
United States. Department of Transportation. Federal Highway Administration Decision Support for Traffic Management Systems: Research and Development [fact sheet]. United States. Department of Transportation. Federal Highway Administration, 2023, Report no. FHWA-HRT-23-044, ROSA P. https://rosap.ntl.bts.gov/view/dot/67356.
This report is focused on predicting and quantifying curling and warping of jointed portland cement concrete pavements. Researchers used the comprehensive research-quality datasets available through the Long-Term Pavement Performance (LTPP) program, supplemented by additional datasets collected by other Federal Highway Administration studies. The a
...
Karamihas, S. M., Punnackal, T., Dufalla, N., & Senn, K. (2023). Advancing Profile-Based Curl-and-Warp Analysis Using LTPP Profile Data (Report No. FHWA-HRT-20-066). United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure Research and Development. https://rosap.ntl.bts.gov/view/dot/73254
Karamihas, Steven M., Timin Punnackal, Nicole Dufalla, and K. Senn. Advancing Profile-Based Curl-and-Warp Analysis Using LTPP Profile Data. Report no. FHWA-HRT-20-066. United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure Research and Development, 2023. https://rosap.ntl.bts.gov/view/dot/73254.
Karamihas, Steven M., et al. Advancing Profile-Based Curl-and-Warp Analysis Using LTPP Profile Data. United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure Research and Development, 2023, Report no. FHWA-HRT-20-066, ROSA P. https://rosap.ntl.bts.gov/view/dot/73254.
United States. Federal Highway Administration. Center for Accelerating Innovation
2023-04-01
|
Innovator
|
PDF
Innovator, published by the FHWA Center for Accelerating Innovation, advances implementation of innovative technologies and processes in the highway industry. Its audience is transportation professionals in highway agencies, trade and research groups, academia and the private sector, and the driving public.
United States. Federal Highway Administration. Center for Accelerating Innovation (2023). Innovator - March/April 2023 - Volume 16, Issue 95 (Report No. FHWA-23-CAI-002). United States. Federal Highway Administration. Center for Accelerating Innovation. https://rosap.ntl.bts.gov/view/dot/74741
United States. Federal Highway Administration. Center for Accelerating Innovation. Innovator - March/April 2023 - Volume 16, Issue 95. Report no. FHWA-23-CAI-002. United States. Federal Highway Administration. Center for Accelerating Innovation, 2023. https://rosap.ntl.bts.gov/view/dot/74741.
United States. Federal Highway Administration. Center for Accelerating Innovation Innovator - March/April 2023 - Volume 16, Issue 95. United States. Federal Highway Administration. Center for Accelerating Innovation, 2023, Report no. FHWA-23-CAI-002, ROSA P. https://rosap.ntl.bts.gov/view/dot/74741.
United States. Department of Transportation. Federal Highway Administration
2023-04-01
|
PDF
This fact sheet provides information regarding the Transportation Pooled Fund (TPF) Excellence Award Program. For more than 45 years, the Federal Highway Administration’s (FHWA) TPF Program has enabled public and private entities to collaboratively conduct cutting-edge transportation research. Through the TPF Program, participants are able to pool
...
United States. Department of Transportation. Federal Highway Administration (2023). Transportation Pooled Fund Program - International Partnership (Report No. FHWA-HRT-23-074). United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/71861
United States. Department of Transportation. Federal Highway Administration. Transportation Pooled Fund Program - International Partnership. Report no. FHWA-HRT-23-074. United States. Department of Transportation. Federal Highway Administration, 2023. https://rosap.ntl.bts.gov/view/dot/71861.
United States. Department of Transportation. Federal Highway Administration Transportation Pooled Fund Program - International Partnership. United States. Department of Transportation. Federal Highway Administration, 2023, Report no. FHWA-HRT-23-074, ROSA P. https://rosap.ntl.bts.gov/view/dot/71861.
Links with this icon indicate that you are leaving a Bureau of Transportation
Statistics (BTS)/National Transportation Library (NTL)
Web-based service.
Thank you for visiting.
You are about to access a non-government link outside of
the U.S. Department of Transportation's National
Transportation Library.
Please note: While links to Web sites outside of DOT are
offered for your convenience, when you exit DOT Web sites,
Federal privacy policy and Section 508 of the Rehabilitation
Act (accessibility requirements) no longer apply. In
addition, DOT does not attest to the accuracy, relevance,
timeliness or completeness of information provided by linked
sites. Linking to a Web site does not constitute an
endorsement by DOT of the sponsors of the site or the
products presented on the site. For more information, please
view DOT's Web site linking policy.
To get back to the page you were previously viewing, click
your Cancel button.